... switched from grepping into a single array to push @a...; push @b...;.

But there are many examples of statements like  grep { $_=0 } @acopy; Very strange.

Give a man a fish:  <%-{-{-{-<

In reply to Re^3: [OT]: This does not look like start end (grep vice for) by AnomalousMonk
in thread This does not look like start end by Anonymous Monk

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